Composite material of carbon-coated nickel-palladium alloy nanoparticles as well as preparation method and application of composite material

The invention relates to a carbon-coated nickel-palladium alloy nanoparticle composite material and a preparation method and application thereof, the composite material contains a core-shell structure with a shell layer and an inner core, the shell layer is a graphitized carbon layer, and the inner core is nickel-palladium alloy nanoparticles. The composite material has intrinsic safety, the problems of coalescence inactivation and loss of metal particles can be avoided, and the catalytic activity of the composite material is higher than that of a carbon-coated nickel nanoparticle composite material in a hydrogenation reaction. 本发明涉及碳包覆镍钯合金纳米粒子的复合材料及其制备方法和应用，其中的复合材料含有具有壳层和内核的核壳结构，壳层为石墨化碳层，内核为镍钯合金纳米粒子。该复合材料具有本征安全性，可避免金属粒子聚结失活和流失的问题，而且在加氢反应中表现出高于碳包覆镍纳米粒子复合材料的催化活性。